Pump casing



FIG. 1 is a front perspective view of a pump casing showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a rear perspective view thereof.

Those portions of the drawings shown in broken lines are included for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a pump casing, as shown and described. 